Subminiature photoflash lamp having light-emitting pyrotechnic c

Details Subminiature photoflash lamp having light-emitting pyrotechnic c Subminiature photoflash lamp having light-emitting pyrotechnic c

1980-05-05

1982-07-27

Scott, Samuel

Combustion

Illuminating flash device, e.g., photographic bulb, etc.

Fuel charge within sealed transparent casing, e.g., bulb

F21K 502

Patent

active

043415130

ABSTRACT:
A subminiature photoflash lamp which includes a pyrotechnic charge centrally disposed within the lamp's plastic, light-transmitting envelope. The charge is supported on the ends of the lamp's ignition means and is of a disklike, planar configuration to provide maximum light output. Ignition of the lamp can be achieved by application of a firing pulse from a piezoelectric element.

REFERENCES:
patent: 1944854 (1934-01-01), Van Liempt
patent: 2375742 (1945-05-01), Kalil et al.
patent: 2913892 (1959-11-01), Fritz et al.
patent: 3220224 (1965-11-01), Baird
patent: 3310968 (1967-03-01), Buzalski
patent: 3332257 (1967-07-01), Gainer et al.
patent: 3528354 (1970-09-01), Nakagawa
patent: 3556699 (1971-01-01), Takahashi
patent: 3685947 (1972-08-01), Meulemans et al.
patent: 3751656 (1973-08-01), Buckler
patent: 3972673 (1976-08-01), Schupp
patent: 4059388 (1977-11-01), Shaffer

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